Overhead logging system.



C. A. JOY.

OVERHEAD LOGGING SYSTEM. APPLICATION FILED MAY 2 1. 1915.

1,170,645. Patented Feb. 8, 1916.

2 SHEETS-SHEET I.

3140044430; Jqy.

THE COLUMBIA PLANOGRAPH 110., WASHINGTON. D. c-

C. A. JOY. OVERHEAD LOGGING SYSTEM.

APPLICATION FILED MAY21. 1915.

l 1,1705645. Patented Feb; 8, 1916.

2 SHEETS-SHEET 2.

THE COLUMBIA PLANDURAPH 70., WASHINGTON, D. C.

pair

CHAR-LES A. JOY, OF BORDEAUX, WASHINGTON.

OVERHEAD LOGGING SYSTEM.

To all whom it may concern:

Be it known that 1, CHARLES A. JOY, a citizen of the United States, residing at Bordeaux, in the county of Thurston and State of Washington, have invented new and useful Improvements in Overhead Logging Systems, of which the following is a specification. p

This invention relates to logging systems, the object of the invention being to provide apparatus by means of which logs may be carried from various points to a common collecting point, the same means embodying in combination with an elevated sky line, a carriage movable lengthwise thereof together with means for moving said carriage along the sky line, and brake mechanism by which the movement of the carriage and the log supported thereon maybe arrested at any moment, the entire mechanism being under the control of an engine stationed at a suitable point. p I y With the above and other objects in view, the invention consists in the novel construction, combination and arrangement of parts, as herein described, illustrated and claimed. In the accompanying drawings Figure 1 is a perspective view illustrating the entire logging system. Fig. 2 is an enlarged side elevation of the carriage. Fig. 3 is a vertical longitudinal section through the carriage. Fig. 1 is a plan view thereof. Fig. 5 is an edge view of the carriage; Fig. 6 is aside elevation of one of-the frame plates of the carriage.

The carriage which will first be described cated under the sky line 6 and serves to prevent derailment of the carriage, all of the wheels being peripherally grooved as shown to engage the line 6. The shaft 12 of the guard wheel is carried by one arm of a compensating lever 13 as shown in Fig. 2, said lever being pivotally mounted at 14 on the carriage and carrying at-the ext-rem- Specification of Letters Patent.

Patented Feb. 8, 1916.

Application filed Ma an 1915. Serial No. 29,614.

ity of its other arm a clevis 15 pivotally connected at 16 to the lever 13. The clevis 15 carries a pulley block 17 through which the main or haul in line hereinafter referred to passes. Adjacent to the clevis 15 the carriage is provided with a hole 18 to which the haul in or main line may be connected under certain conditions as in hauling on level ground.

19 designates a brake lever fulcrumed at 20 on the frame of the carriage, said lever having attached thereto a brake shoe 21 which bears against the guard wheel 11. Connected pivotally to the lever 19 at 22 is a rod 23 the opposite or upper extremity of which is attached to a pin or pivot 2% con necting the inner and overlapping extremities of a pair of brake links 25 carrying at their outer opposite ends brake shoes 26 which. bear against the supporting wheels 7 and 8 above referred to. Therefore, when the brake lever 19 is operated, all of the shoes 21 and 26 are pressed against their respective wheels to retard or stop the car riage beneath which the log is supported and from which it is suspended as will hereinafter appear. Another clevis 27 is carried between the frame plates 1 and 2 and suspended by a pin or bolt 28 which is mov- 30 is provided with a nut 35.

Referring now to Fig. 1 it will be seen that the carriage hereinabove described and which is now designated generally at A is supported by and movable along the sky line 6 also referred to above, said line being supported adjacent toits opposite ends by a head tree or support 36 and the tail tree or support 37. Beyond the tail support 37,

after wrapping the sky line 6 one ormore times around said tail tree, the end thereof is carried to a stump or its equivalent indicated at 38 to form a guy line for said sky line. The other end portion of the sky line 6 passes through a head pulley block 39 and is then connected by block and tackle indicated at 40 and connected to a stump 4:1 or its equivalent, to the drum 42 of a donkey engine designated generally at B. In this manner, the sky line 6 may be stretched tightly between the head and tail trees so as to properly support the carriage and its load. Guy lines l3, ll and 45 are extended from the head tree 38 to conveniently located stumps a6, l? and {i8 and other guy lines l?) and are extended from the tail tree 37 to conveniently located stumps 51 and 52.

53 designates the main or haul in line which passes through the pulley block 17 hereinabove described and thence through another pulley block 54- on a tag line 55 to the clevis 2T hereinabove described and as shown in Fig. 1. The tag line 55 is provided with a bull hook 56 by means of which a log indicated at 57 is engaged and elevated preparatory to hauling the same toward the head tree 36. After leaving the block 17 the main or haul in line 53 passes over a head block 58 and thence downwardly to another drum 59' of the engine B.

A haul back line 60 extends from a third drum (31 on the engine B upwardly through a. head block 62 on the head tree and thence the width of the strip of the ground to be covered in the hauling in operation. \Vhere logs are to be hauled from beyond or behind a the tail tree 37.,the tail block (56 may be shifted to the position indicated at 66 in Fig. l, the slack line 68 permitting a log to be engaged and lifted at such point.

From the foregoing description, taken in connection with the accompanying drawings, the operation of the logging system will now be understood.

The haul back line hauls the carriage out along the sky line to the point where the logis to be hooked on. The carriage is then stopped and the bull hook on the end of the tag line is engaged with the log. The main or haul in line is then operated so as to raise on the haulin or main line. One head, tree is all that is required at one setting of the engine. The tail tree 1s changed each time a strip is logged or,"1n other words, cleared of logs. These strips may be just as wide as desired, a new tail tree being selected and guyed before the old one is deserted and forthis purpose a light line or what is termed a straw line is run out from the drum ofthe extending from one upright to the other,

log-

a wheeled carriage supported by and movable along said sky line, a mam draft line' connected at two points with said carriage, a tag line having a pulley block through which said main draft'line passes between said two points, a slack line connecting said pulley block with the carriage, and a haul back line having a pulley block through which said slack line. passes.

2. In a logging system, the combination of supporting uprights located at a dis tance from each other, an elevated sky line extending from one upright to the other, a

wheeled carriage supported by and movable along said sky line, a main draft line connected at two points with said carriage, a tag line having a pulley block through which said main draft line passes between said two points, a slack line extending from said pulley block to the wheeled carriage,

an engine having a winding drum for the sky line, a haul back line having a pulley through which said slack line passes, a drum for the main draft line, .and a drum for the haul back line.

3. In a logging system, the combination of supporting uprights located at a distance its from each other, .an elevated sky line eX- tendingfrom one upright to the other, a wheeled carriage supported by and movable along sa1d sky line, a main draft line connected at two points with said carriage, a tag line havlng a pulley block through I which said main draft line passes between said two points, a slack line, a haul back llne and a wheel brake mechanism on said carriage controlled by the haul back and slack lines.

4. In a logging system, the combination of supporting uprights located at a distance from each other, an elevated sky line extending'from one upright to the other, a wheeled carriage supported by and movable along said sky line, a, guard Wheel on the In testimony whereof I afiix my signature farriage engagingf the bottom ofd the sky in presence of two Witnesses.

ine, a main dra't line connecte at two points with said carriage, and. a tag line CHARLES 5 having a pulley block through which said Witnesses:

main draft line passes between said two WV. R. PHELPS,

points. O. H. CARTER.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents.

Washington, D. C. 

